Concrete wall construction



' Aug. 25, 1925. I 1,551,430

A. G. REYNOLDS CONCRETE WALL CONSTRUCTION Filed 001:. L, 1924 INVENTOR.H. E. REYNEILDS reamed Aug. 25, 1925.

UNIT Eo STATES I nnonzo ennynorins, OFxSAN FRANCISCO,-CALIFORNIA.

CONCRETE WALL CONSTRUCTION. 1

Application filed October 4, 1924. Serial No. 741,710.

To aZZ whom it may concern:

Be it known that I, ALONZO G. REYNOLDS,

a citizen of the United States, residing at San Francisco, in the countyof San Francisco and State of California, have invented new and usefulImprovements in Concrete lVall Constructions, of which the following isa specification.

This invention relates to concrete slabs for walls and has particularreference to the construction of a concretewall out of slabs adapted tobe superimposed one upon the other and further to space two walls thusconstructed so as to provide an airv space therebetween. 1

Another object is to provide means for; securing the slabs togetherprevious to pouring the binding cement which'forms the i iv column. I

A still further objectis to provide meanswhereby a form is automaticallyconstructed thus removing the necessity of a wood form for confiningplastic concrete as 1s now com-' monly needed.

Other objects and advantages will be apparent during the course ofthefollowing description.

In the accompanying drawings forming a part of this specification, andin which like numerals are employed to designate like parts throughoutthe same,

Figure l is a cross section of a wall constructed in accordance with myinvention, and

Figure 2 is a fragmentary perspective view of two of my slabs as theyappear previous to being placed in a wall.

Inthe building of concrete walls,fit is now customary to build forms,lay re-enforcing bars in these forms, then pour concrete therearound tomake a monolithic structure. This construction is expensive owing to thelarge amount of lumber which must be employed. Furthermore, the erectionof the forms requires considerable time and labor.

I have formed slabs as designated by the numeral 5, which slabs are castin suitable molds and have re-enforcing rods 6 cast therein. The-ends ofthese rods protrude at an angle from a point on one side of the blockand near the end thereof. These protruding ends are designated by the,numeral 7 I It is preferable to form. a tongue .8 along one edge of theslabs so as to form an interlock between the next slab. above, which. isprovided. with a suitable groove. The ends of the slabs are fashioned inthe same manner, one of the grooves being shown at 9. At the sametimethat I cast the slabs I insert near each end thereof,a sheet metalmember 11. This sheet metal member has one end split and bent as shownin dotted lines in Figure 2, as indicated by the numeral 12.

These bent ends serve to securethe sheet. metal members in the concrete.when the same is poured. .In'each of these sheet metal members isprovided securing slots .13, through which bolts 14 are adapted to beplaced. This construction completes the forming of'a slab. v

flVhen the blocks thus formed are setin a wall, the result is that thesheet metalmem bers lie parallel with each other and the ends 7 of there-enforcing rods cross each other. It is to be understood that a secondset of slabs are placed parallel to the first set and in such a mannerthat the sheet metal members contact the sheet metal members of thefirst row of slabs. This ,will also cause the ends 7 of the second setto cross each other and at the same time lie in close proximity to theare passed through the slots 13 of the con tacting metal members 11 andtightened so as to hold the slabs in proper relation to each other,after which the concrete 17 is poured into the form thus constructed bythe ends of the slabs and the sheet metal members. This concrete, uponhardening, forms an absolute look around the crossed ends 7 of thedifferent slabs and at the same time forms a column, which gives thewall considerable strength. I

It will thus be seen that I have provided a very simple and efficientslab out of which a wall may be constructed in a minimum amount of time.

It is to be understood thatvthe form of my invention herewith shown anddescribed is to be taken as a preferred example of the same, and thatvarious changes in the shape, size and arrangement of parts may beresorted to without departing from the spirit of the invention or thescope of the subjoined claims.

Having thus described my invention, I clai1n 1. In a concrete slab ofrectangular shape, a plurality of re-enforcing bars embedded in saidslab and having the ends protruding therefrom on one side of said slaband near the ends thereof said protruding ends being diverging from eachother, and a sheet metal member positioned in said slab near each endthereof so as to form parallel 6X- tensions at right angles to thesurface of said slabs.

2. A wall construction comprising a plurality of slabs; re-enforcingbars positioned in said slabs, similar re-enforcing bars in the 15 andmeans for securing said sheet metal 20 members of said slabs one to theother.

In testimony whereof I afiix my signature.

ALONZO G. REYNOLDS.

